<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>webWorkerV2</title>
</head>
<body>
<script>
    const W = new Worker('workerV2.js', {name: 'workerV2'})
    W.onmessage = (e) => {
        console.log('message',e)
    }
    W.onmessageerror =(e) => {
        console.log('onmessageError',e)
    }
    W.onerror =(e) => {
        console.log('error', e)
    }
    W.postMessage('start!')
</script>
</body>
</html>
